Physical activity monitor



FIG. 1 is a top view of the physical activity monitor showing our new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof; and,

FIG. 7 is a perspective view thereof. 

We claim the ornamental design for a physical activity monitor, as shown and described. 